Subtract 70/8 from 12/28
1st number: 12/28, 2nd number: 8 6/8
12/28 - 70/8 is -233/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
12/28 = 12 × 2/28 × 2 = 24/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
70/8 = 70 × 7/8 × 7 = 490/56 - Subtract the two like fractions:
24/56 - 490/56 = 24 - 490/56 = -466/56 - After reducing the fraction, the answer is -233/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28-70/8 12/56-70/8 12/28-70/16 36/28-70/8 12/84-70/8 12/28-70/24 60/28-70/8 12/28-70/40 84/28-70/8 12/28-70/56